Secure Prompt — Anonymize Text Before Sending to AI

Free client-side text anonymizer. Remove emails, phone numbers, IBANs, credit cards and personal data before sending to ChatGPT or any AI service. 100% private — everything runs in your browser, nothing leaves your device.

Why Secure Prompt?

100% Private — All processing happens in your browser. No data is ever sent to any server.
Smart Detection — Detects emails, phones, IBANs, credit cards, SSNs, IPs, birth dates, and more automatically.
Fully Reversible — Restore the original text after receiving your AI response with one click.
16 Languages — Available in 16 languages for professionals worldwide.

How It Works

Enter your text with personal data
Click Anonymize — sensitive data is replaced with placeholders
Copy the anonymized text and send it to ChatGPT
Paste the AI response and click Decode to restore original data

Documentation

Secure Prompt is a 100% client-side Single Page Application (SPA) built with React and TypeScript. All text processing happens in your browser using Regular Expressions (Regex) and the Luhn algorithm for credit card validation. No server-side processing, no API calls, no data transmission.

Privacy Policy

At Secure Prompt, privacy is not an option — it's the core architecture. We cannot see, store, or share your data because it never leaves your device. All anonymization logic runs exclusively in your browser's memory (RAM).